公开(公告)号：US20150327922A1

公开(公告)日：2015-11-19

申请号：US14712470

申请日：2015-05-14

Applicant: Boston Scientific Scimed Inc.

Inventor： Shuja Dawood ,  Jennifer Leschkies ,  Anna Mandernach ,  Rebecca Tin ,  Venkata Vegesna ,  Paul A. Roche ,  Vikrant Singh Badwal ,  Noel Keane ,  Adrian Valdelomar ,  Priya Sundaramurthy

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B2017/00318 ,  A61B2018/0019 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00839 ,  A61B2018/00994 ,  A61N2007/0043

Abstract: An ablation catheter system includes a tip assembly configured to provide ablation energy to tissue. The tip assembly includes an outer surface and a piezoelectric element is acoustically coupled to the outer surface of the tip assembly. The piezoelectric element is configured to cause the outer surface of the tip assembly to vibrate.

Abstract translation: 消融导管系统包括构造成向组织提供消融能量的末端组件。 尖端组件包括外表面，并且压电元件声学耦合到尖端组件的外表面。 压电元件构造成使得尖端组件的外表面振动。

公开(公告)号：US10070910B2

公开(公告)日：2018-09-11

申请号：US13938086

申请日：2013-07-09

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Frank W. Ingle ,  Robert F. Bencini ,  Josef V. Koblish ,  Jonathan A. Wohlgemuth ,  Paul A. Roche

IPC: A61N1/30 ,  A61B18/02 ,  A61M25/10 ,  A61B17/22 ,  A61B18/00

CPC classification number: A61B18/02 ,  A61B2017/22051 ,  A61B2017/22054 ,  A61B2018/00196 ,  A61B2018/0022 ,  A61B2018/0212 ,  A61B2018/0262 ,  A61M25/1011

Abstract: Apparatus and methods for performing cryogenic ablation of tissue and adjusting the size and/or location of a cryogenic cooling region. A cooling assembly may include tubes for dispensing and exhausting a coolant or refrigerant. One or both of the tubes may be moved, e.g., slidably adjusted, in order to adjust the location or size of a cryogenic ablation region. The cooling assembly may be integrated into cryogenic ablation devices including a cryogenic balloon device that includes an inner inflatable balloon and another balloon that is at least partially wrapped around the inner balloon and carries refrigerant for performing cryo-ablation. Electrodes permit electrical mapping of tissue before or after cryo-ablation to verify success of the procedure.

公开(公告)号：US20170143419A1

公开(公告)日：2017-05-25

申请号：US15422324

申请日：2017-02-01

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Frank Ingle ,  Paul A. Roche

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B2017/00084 ,  A61B2018/00011 ,  A61B2018/00666 ,  A61B2018/00702 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00791 ,  A61B2018/00839

Abstract: An embodiment of a system for ablating tissue comprises an electrode configured for use to deliver RF power to ablate the tissue, and a heat flow sensor configured to provide a measurement of heat flow from the electrode to blood or irrigation fluid. According to some embodiments, the system further comprises an RF source configured to generate RF power connected to the electrode (PE) to ablate tissue, and a controller configured to control a level of RF power and a duration for an ablation procedure. The controller is programmed to implement a process to estimate RF power dissipated in tissue (PT), including calculating power loss due to convective heat flow (PCONV) from the tissue through the electrode to the blood or the irrigation fluid to cool the electrode, and calculating the RF power dissipated in tissue (PT) by subtracting PCONV from PE.